A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 6685-01-355-3550
NSN 6650-00-809-1817
NSN 6145-01-334-5336
NSN 4140-01-578-6088
NSN 6610-01-044-4740
NSN 5920-01-517-1158
NSN 6220-01-232-4744
NSN 6320-00-882-7061
NSN 5990-01-646-8048
NSN 6620-01-290-2973
NSN 6110-01-447-6813
NSN 5835-01-303-6563